The HRI-485x series is a DTU device that converts the RS-485 bus to wireless data. Sub models achieve RS-485 data to LTE (Cat. 1/Cat. 4), private LoRa, standardLoRaWAN, Ethernet, etc. communications method.


HRI-485x have following main features:

  • MCU:ESP32C3-FN4 / ESP32DOWDQ6;

  • LoRa:SX1262;

  • Support LoRaWAN (only HRI-4851L);

  • Support 4G and Ethernet;

  • Support 4.5-28v supply voltage ;

  • Support for data encryption,1024 bytes cache,a single packet supports up to 240 bytes;

  • Support communication key function , effectively prevent data interception;